| Autor: |
Yousef AF; College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.; Department of Horticulture, College of Agriculture, University of Al-Azhar (Branch Assiut), Assiut, 71524, Egypt., Ali MM; College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China., Rizwan HM; College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China., Gad AG; Plant Pathology Department, Faculty of Agriculture, Alexandria University, El-Shatby, Alexandria, 21545, Egypt., Liang D; College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China., Binqi L; College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China., Kalaji HM; Department of Plant Physiology, Institute of Biology, Warsaw, University of Life Sciences SGGW, 159 Nowoursynowska 159, 02-776, Warsaw, Poland., Wróbel J; Department of Bioengineering, West Pomeranian University of Technology in Szczecin, 17 Słowackiego Street, 71-434, Szczecin, Poland., Xu Y; College of Mechanical and Electronic Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. y.xu@fafu.edu.cn.; Institute of Machine Learning and Intelligent Science, Fujian University of Technology, 33 Xuefu South Road, Fuzhou, 350118, China. y.xu@fafu.edu.cn., Chen F; College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. cfaxing@126.com. |
| Abstrakt: |
It is already known that there are many factors responsible for the successful formation of a graft union. However, the role of light has been little studied. In an anatomical study, Scanning Electronic Microscope (SEM) was used to explore the effects of different light-emitting diodes (LEDs) on graft union formation in grafted tomato. In addition, the expression genes related to Auxin hormone signaling pathway (SAUR67, AUX1, ARF30, and LAX3) was investigated. The obtained results showed that the concrescence process occurred faster under R7:B3 light conditions, as compared to blue (B) and white fluorescent (WFL) lights. Red light application caused a delay in the vascular tissue differentiation, which may lead to callus development on both sides, causing junctional failure and resulting in ineffective graft junctional arrangement. The expression of genes related to Auxin hormone significantly increased by R7:B3 application. We suggest that LED spectra affects the graft development of tomato plants and can improve the performance of grafted tomato seedlings. |
